OpenGL_Lib

A simple C++14 library for managing OpenGL rendering using GLFW, GLAD, and stb_image.
Provides an easy-to-use Renderer class for window/context creation, shader management, buffer and texture handling, and drawing operations.

Features

• Window and OpenGL context creation
• Shader compilation and management
• Vertex buffer and VAO management
• Texture loading and binding
• Drawing primitives and indexed geometry
• State management (depth test, blend mode)
• Error checking

Requirements

• GLFW
• GLAD
• stb_image.h
• C++14 compatible compiler (tested with MSVC/Visual Studio 2022)

Setup (Visual Studio)

1. Add Source Files

   • Copy Renderer.h and Renderer.cpp into your project.
   • In Visual Studio:
     Project > Add Existing Item and select both files.

2. Install Dependencies

   • Use vcpkg or NuGet to install GLFW and GLAD:

     vcpkg install glfw3 glad

   • Download stb_image.h and add it to your project directory.

3. Configure Project Properties

   • Project > Properties:
     • Add include directories for GLFW, GLAD, and stb_image.
     • Add library directories for GLFW and GLAD.
     • Link against glfw3.lib and opengl32.lib.

4. Example Usage

    #include "Renderer.h"
    int main() {
      ogl_lib::Renderer renderer;
      renderer.create_window(800, 600, "OpenGL Window");
      renderer.initialize_opengl();
      // Main loop
      while (true) {
         renderer.clear_screen(0.1f, 0.2f, 0.3f, 1.0f);
         // ... rendering code ...
         renderer.swap_buffers();
         // Add window close logic as needed
      }
   
       renderer.shutdown_opengl();
       return 0;
    }
   
   

5. Shader and Resource Files

• Place your shader files and textures in accessible locations.
• Reference their paths when calling load_shader and load_texture.

License

See LICENSE for details.